Sash stopper and fastener



UNITED STATES PATENT OFFICE.

J. B. S. HADAWAY, OF EAST VEYMOUTH, MASSACHUSETTS.

SASH STOPPER AND FASTENER.

Specification of Letters Patent No. 9,404, dated November 16, 1852.

Fast Weymouth, in the county of Norfolk and State of Massachusetts, have invented a new and useful Improvement in Sash- Fasteners; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings, forming part of this specification, in which Figure l is a transverse vertical section of a window frame and sash, with my fastener attached. Fig. 2 is a similar section, showing the sash supported by the fastener. Fig. 3 is a broken section, showing the swinging lever (C), and the edge of the rocking plate. Fig. 4 is a view of the edge of the sash, showing the face of the rocking plate. Fig. 5 is the elevation of the sash fastener detached from the sash. Fig. 6 is a transverse vertical section of a window frame and upper sash with fastener attached. Fig. 7 is a similar section, showing the sash supported by the fastener.

The same letters refer to the same parts 4in all the figures.

The nature of my invention consists in constructing a sash fastener, by the combination of a rocking plate, .spiral spring, and levers; the plate and spring being acted upon in such a manner by the levers, that the sash can be securely fastened, or maintained in any position by this fastener.

The sash fastener consists of an angular lever (f, f) secured at its fulcrum (a) in a recess in the sash, or in a metallic case; at about the middle of the bent arm (f) of this lever, is fastened t-he rocking plate (E), by a pin (b) passing through it and two ears on the rocking plate: and on the lower end of this arm (f) of the angular lever, is the spiral spring (F) continually acting upon the arm. Connected with these parts is the swinging lever (C), which is of any convenient ornamental form, as seen in Fig. 8. This lever has its fulcrum in the shaft (c) passing through the sash or metal case, between the spiral spring (F) and the arm (f) of the angular lever (f, f). Upon the end of the shaft (c) within the sash or metal case is the cam (m), which forms the short arm of the swinging lever (C). In the end of this cam is a friction roller to work against the arm (f) of the angular lever (f, f).

The operation of this fastening` is as follows. When the fastening is in the position represented in Fig. l, the rocking plate (E) rests in the inclined recess in t-he window frame, and prevents the sash from being raised. In this position, the long arm of the swinging lever (C) is pendant, as is seen in Fig. 3. `When this arm is elevated, the short arm (m) presses against the arm (f) of the angular lever (f, f), pushing it up, and, from the construction of the le- Wer, depressing the arm (f), which, by reason of its connection with the vrocking plate (E), draws it down Hush with the edge of the sash, and permits the sash to be raised. Vhen the sash is sufiiciently elevated, the upward pressure on the arm (C) of the swinging lever is removed, the arm (C) then falls into the hanging position seen in Fig. 3, removing the pressure of the cam (m) upon the arm (f) of the angular lever (f, f), and allowing the spiral spring (F), acting under the bent arm (f) of the angular lever, to press the rocking plate (E) against the inside of the window frame; thus, causing the sash to be held firmly in its position, without catch or indentation in the window frame. The face of the rocking plate (E) is covered with leather or india rubber to prevent its leaving a metallic mark on the window frame, as seen at (7c) Fig. 4.

The rocking plate E can be operated without the swinging lever, as in the top sash, where the long arm of the angular lever (f, f), projects through the sash frame, as seen in Figs. 6 and 7, and when raised, draws down the short arm (f) and rocking plate in the manner described above. The action of the spiral spring and rocking plate are in this case precisely the same as just described.

What I claim as my invention and desire to secure by Letters Patent, is as follows:

1. The combination of the rocking plate (E), with the angular lever (f, f), the swinging lever C, m), and the spiral spring (F), constructed and arranged, and

operating in the manner and for the pnrsubscribed my name before tWo subscribing poses herein specified. Witnesses.

2. The rocking plate E, combined With either a simple or compound lever in the 5 manner, and for the purpose herein speci- Witnesses:

fied. AUGUSTUS S. HADAWAY,

In testimony whereof, I have hereunto LOVELL BRIKNELL.

J. S. HADAWAY. 

